Results 221 to 230 of about 3,653 (253)
Some of the next articles are maybe not open access.
Organic Mass Spectrometry, 1977
AbstractThe fragmentation behavious under electron of di‐ and tri‐peptide analogues containing amino acid (aa) and aminomethylphosphonic acid (ap) groups are described. Successive fragmentations of the molecular ions provided a convenient method for the sequence determination of peptides containing aa and ap units.
Kiyoshi Yamauchui +2 more
openaire +1 more source
AbstractThe fragmentation behavious under electron of di‐ and tri‐peptide analogues containing amino acid (aa) and aminomethylphosphonic acid (ap) groups are described. Successive fragmentations of the molecular ions provided a convenient method for the sequence determination of peptides containing aa and ap units.
Kiyoshi Yamauchui +2 more
openaire +1 more source
Journal of Chromatography A, 2008
A capillary electrophoresis (CE) method coupled with electrochemiluminescence (ECL) detection for the analysis of glyphosate (GLY) and its major metabolite aminomethylphosphonic acid (AMPA) is presented. Complete separation of GLY and AMPA was achieved in 8 min using a background electrolyte of 20 mM sodium phosphate (pH 9.0) and a separation voltage ...
Hsien-Yi, Chiu +3 more
openaire +2 more sources
A capillary electrophoresis (CE) method coupled with electrochemiluminescence (ECL) detection for the analysis of glyphosate (GLY) and its major metabolite aminomethylphosphonic acid (AMPA) is presented. Complete separation of GLY and AMPA was achieved in 8 min using a background electrolyte of 20 mM sodium phosphate (pH 9.0) and a separation voltage ...
Hsien-Yi, Chiu +3 more
openaire +2 more sources
CNDO/2 studies of aminomethylphosphonic and aminomethyl-p-methylphosphinic acids
Journal of Molecular Structure, 1981Abstract Molecular properties of aminomethylphosphonic and aminomethyl-P-methylphosphinic acids in the zwitterionic and molecular forms have been evaluated by the CNDO/2 method. It is found that the molecular form of both acids is more stable than the zwitterionic one in the gas phase. The preferred hydration sites are evaluated.
Z. Latajka +3 more
openaire +1 more source
Interactions of aminomethylphosphonic acid and sarcosine with montmorillonite interlayer surfaces
International Journal of Quantum Chemistry, 2007AbstractThe smectite clay, montmorillonite, can be found in many soils throughout the world. In addition to its importance in agriculture and soil remediation, montmorillonite has extensive applications in industry both in its natural form and as a component of composite materials.
Amanda Rennig +2 more
openaire +1 more source
Biomonitoring of glyphosate and aminomethylphosphonic acid: Current insights and future perspectives
Journal of Hazardous MaterialsGlyphosate is one of the most widely used herbicides globally, raising concerns about its potential impact on human health. Biomonitoring studies play a crucial role in assessing human exposure to glyphosate and providing valuable insights into its distribution and metabolism in the body.
Xin, Wei +8 more
openaire +2 more sources
Journal of the Chemical Society, Dalton Transactions, 1997
The complexing properties of aminomethylphosphonic acid, Gly-(P), and glycylaminomethylphosphonic acid, Gly-Gly-(P), with Pt II and Pd II were investigated pH-metrically at 25 °C and at an ionic strength of 0.1 mol dm -3 (KNO 3 ) using ‘out of cell’ titrations.
Leoš Bláha +3 more
openaire +1 more source
The complexing properties of aminomethylphosphonic acid, Gly-(P), and glycylaminomethylphosphonic acid, Gly-Gly-(P), with Pt II and Pd II were investigated pH-metrically at 25 °C and at an ionic strength of 0.1 mol dm -3 (KNO 3 ) using ‘out of cell’ titrations.
Leoš Bláha +3 more
openaire +1 more source
Degradation of 14C-glyphosate and aminomethylphosphonic acid (AMPA) in three agricultural soils
Journal of Environmental Sciences, 2010Glyphosate (N-phosphonomethyl glycine) is the most used herbicide worldwide. The degradation of 14C-labeled glyphosate was studied under controlled laboratory conditions in three different agricultural soils: a silt clay loam, a clay loam and a sandy loam soil. The kinetic and intensity of glyphosate degradation varied considerably over time within the
Al-Rajab, Abdul-Jabbar, Schiavon, Michel
openaire +3 more sources
Complexing properties of phosphonodipeptides containing aminomethylphosphonic acid
Journal of the Chemical Society, Dalton Transactions, 1995Petr Hermann, Ivan Luke?
openaire +1 more source
Determination of Glyphosate and Aminomethylphosphonic Acid Using Molecular Cavity Analysis
1979A convenient method of analysis is described for the MECA determination of glyphosate and aminomethylphosphonic acid involving the measurement of the HPO emission at 528nm. Calibration graphs were prepared for both compounds with detection limits being in the range of 500 ppm for glyphosate and 400 ppm for aminomethylphosphonic acid.
openaire +1 more source